1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2019 IBM Corporation
4 * Author: Nayna Jain
5 *
6 * PowerPC secure variable operations.
7 */
8#ifndef SECVAR_OPS_H
9#define SECVAR_OPS_H
10
11#include <linux/types.h>
12#include <linux/errno.h>
13
14extern const struct secvar_operations *secvar_ops;
15
16struct secvar_operations {
17	int (*get)(const char *key, uint64_t key_len, u8 *data,
18		   uint64_t *data_size);
19	int (*get_next)(const char *key, uint64_t *key_len,
20			uint64_t keybufsize);
21	int (*set)(const char *key, uint64_t key_len, u8 *data,
22		   uint64_t data_size);
23};
24
25#ifdef CONFIG_PPC_SECURE_BOOT
26
27extern void set_secvar_ops(const struct secvar_operations *ops);
28
29#else
30
31static inline void set_secvar_ops(const struct secvar_operations *ops) { }
32
33#endif
34
35#endif
36